package org.activiti.crystalball.simulator;

import java.util.List;

/* Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * 
 *      http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */


/**
 * This class provides access to simulation events
 *
 * @author martin.grofcik
 */
public interface EventCalendar {
  boolean isEmpty();

  SimulationEvent peekFirstEvent();

  SimulationEvent removeFirstEvent();

  void addEvent(SimulationEvent event);
  
  List<SimulationEvent> getEvents();

  void clear();
}
